The severity of Müller injury has led to wild speculation. At first, it was hoped to be nothing more than a cramp or muscle hardening. On Sunday, Bild reported a much more serious diagnosis of 5-6 weeks. The truth now falls squarely in the middle.
Müller thus will miss Bayern's double-header against RB Leipzig this Wednesday and Saturday, as well as two important away games: against Celtic in the Champions League group stage and then Der Klassiker in Dortmund the following Saturday.
The November international break will permit Müller to ease back into fitness, and he now is anticipated to make his comeback in Bayern's home game against Augsburg on matchday 12, Nov. 18.
Importantly for Bayern, according to this revised timeline, Müller should be back in action for the all-important rematch with Paris Saint-Germaine on December 5.
One more thing...
Finally, it is worth taking a closer look at Bayern's official statement. Here is what they say about Müller's injury:
Müller had come on as a substitute in the 46' minute with the score 0:0. The 28-year-old provided an assisst for the game-winning goal by (52'). Shortly beforehand he had injured himself and consequently had to be subbed out in the 55' minute.
Incredibly, Müller provided the assist to Tolisso after he injured himself. Come back stronger, Thomas!